3 * copyright (c) 2000 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 * internal header for RIFF based (de)muxers
25 * do NOT include this in end user applications
28 #ifndef AVFORMAT_RIFF_H
29 #define AVFORMAT_RIFF_H
31 #include "libavcodec/avcodec.h"
35 int64_t ff_start_tag(AVIOContext *pb, const char *tag);
36 void ff_end_tag(AVIOContext *pb, int64_t start);
39 * Read BITMAPINFOHEADER structure and set AVStream codec width, height and
40 * bits_per_encoded_sample fields. Does not read extradata.
43 int ff_get_bmp_header(AVIOContext *pb, AVStream *st);
45 void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf);
46 int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc);
47 enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps);
48 int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size);
50 extern const AVCodecTag ff_codec_bmp_tags[];
51 extern const AVCodecTag ff_codec_wav_tags[];
53 unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum CodecID id);
54 enum CodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag);
55 void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale);
57 typedef uint8_t ff_asf_guid[16];
60 "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x"
61 #define FF_ARG_GUID(g) \
62 g[0],g[1],g[2],g[3],g[4],g[5],g[6],g[7],g[8],g[9],g[10],g[11],g[12],g[13],g[14],g[15]
64 static av_always_inline int ff_guidcmp(const void *g1, const void *g2)
66 return memcmp(g1, g2, sizeof(ff_asf_guid));
69 void ff_get_guid(AVIOContext *s, ff_asf_guid *g);
76 enum CodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid);
78 extern const AVCodecGuid ff_codec_wav_guids[];
80 #define FF_MEDIASUBTYPE_BASE_GUID \
81 0x00,0x00,0x10,0x00,0x80,0x00,0x00,0xAA,0x00,0x38,0x9B,0x71
83 #endif /* AVFORMAT_RIFF_H */